Stockless anchor



Sept. 13, 1938.

DUERR STOCKLESS ANCHOR Filed Dec. 29, 1936 UNITED STATES PATENT OFFICE STOCKLESS ANCHOR Edgar Duerr, Anglesey, Wales Application December 29, 1936, Serial No. 118,070 In Great Britain January 18, 1936 1 Claim. (Cl. 114-208) This invention relates to improvements in or the rounded tripping pieces sliding easily over relating to anchors of the stockless type having a uneven or painted surfaces without causing insingle fluke pivoted between a double shank, and jury thereto.

limited in movement to approximately 45 degrees The anchor when stowed on deck, rests on three 5 on either side by stops. widely separated points, and is therefore stable. '5

Whereas it is usual to provide tripping pieces, With this anchor in its normal working posior an enlarged head to the fluke, to ensure the tion with the fluke only, driven in the ground, latter taking hold of the ground, which by their the back or upper surface presents a smooth shape unfortunately prevent the complete burysurface, which it is impossible to foul with the ing of the fluke and head even in soft ground, cable on change of wind or tide. 10 this invention has for one of its objects the de- No matter how carelessly the anchor is let go, signing of the tripping pieces, the double shank, the point of the fluke will commence to dig itself and the fluke itself, so as to present a narrow or in as soon as there is pull on the anchor. Restreamlined edge in the direction of diving of the ferring to Fig. 2, it will be seen that the confluke, a further object being the pro-vision of an struction of the tripping stops is such that the 15 anchor which is light in weight for its holding point of contact with the shank is at a sufficient power, and both easy to handle and stow. distance from the point of pivot to make this In the accompanying drawing, showing an emconstruction exceptionally strong. I do not limit bodiment of the invention: myself to the exact form of fluke shown, but may Figure l is a vertical section; Fig. 2 shows a use any suitable streamlined form, nor do I limit 20 side view of the anchor being hauled up over the myself to the exact form of double shank, and projections of the boats planking; Fig. 3 is a secmay use a bridge piece connecting the double tion through the fluke; and Fig. 4 shows position shank at any convenient point, or bring the taken up by anchor under heavy strain in soft double shank closer together for use with hawse ground. pipes. 25

In the drawing a are the tripping pieces, b a I claim:- suitable form of double shank; c the trunnion A stockless anchor comprising a bifurcated bolts; d a hole in head of fluke for attachment shank, a crown pivoted between the bifurcations of tripping line shackle. of the shank and afluke member and a disc The tripping pieces a (Fig. 1) which also act shaped tripping piece rigid with said crown at 30 as stops limiting the angle of the fluke, are 10- each side of the crown disposed in alignment with cated in line or directly behind the double shank the respective shank bifurcations and having repieces b which latter are constructed of narrow cesses therein whereby stops are formed limiting section metal of considerable width, which gives pivotal movement of the crown and fluke, that great strength against Working stresses and at portion of said crown lying between said disc 35 the same time allows the double shank itself to shaped tripping pieces being of relatively small sink below the surface in soft holding ground, dimensions with respect to the diameter of the rather than drag. tripping pieces facilitating the digging in of the Fig. 2 shows the anchor in position for hauling anchor. aboard from which it will be obvious that there EDGAR DUERR. 40

is nothing tofoul any part of the ships side, 

